If f (x) = -4x-4 and g (x) = x^3, what is (g • f) (-2)

Question

Mathematics

Kenzie Gray

28 May, 04:36

If f (x) = -4x-4 and g (x) = x^3, what is (g • f) (-2)

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Answers (1)

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Caroline Mora · Answer 1

(g • f) (-2) = - 32

Step-by-step explanation:

f (x) = -4x-4 and g (x) = x^3

(g • f) (x) = x^3 * (-4x - 4)

(g • f) (x) = - 4x^4 - 4x^3

if x = - 2 then

(g • f) (-2) = - 4 (-2) ^4 - 4 (-2) ^3

(g • f) (-2) = - 4 (16) - 4 (-8)

(g • f) (-2) = - 64 + 32

(g • f) (-2) = - 32